Viewfinders - G15, LF1 & P7800

I am looking for user opinions and comparisons about the viewfinders on these cameras G15, LF1 & P7800. If you have used one of these cameras how do you rate it's viewfinder? If you have used two or more of these cameras how do their viewfinders compare?

I have a G15 but am becoming increasingly frustrated by the inaccuracy of the viewfinder. I have been thinking that maybe a camera with an EVF would be better.